Fluid line connection shell



FIG. 1 is a top front perspective view of a fluid line connection shell showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 if a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a fluid line connection shell, as shown and described. 